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Posted 20 hours ago

Gardening Naturally Greenhouse Louvre Vent Automatic Window Opener

£9.9£99Clearance
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Monitor greenhouse temperature with a maximum-minimum thermometer. If temperatures are allowed to build up (typically more than 27°C/81°F) plant damage can occur

This Louvre Kit for your greenhouse consists of the components for a 5 bladed louvre window (excluding the glass), including the fixing bolts for fitting into an aluminium greenhouse. Opening vents and doors helps to release some of the heat but it is often insufficient and therefore shading is usually required from mid-spring until early autumn. Fit automatic vent openers to ensure roof vents open even when you are not around. However, remember that since they work by the expansion of wax in a cylinder to open the vents, it takes time for the wax to expand. Provide plenty of alternative ventilation (i.e. doors and side vents)to prevent damaging temperatures occurring before the openers respondGreenhouses with horticultural glass (2ft x 2ft overlapping panes) will simply have one of the existing glass panes replaced with the louvre window. Increase ventilation and air circulation in your greenhouse with this five bladed Louvre Kit, designed to be fit in either an aluminium or wooden greenhouse. Opening the greenhouse door is not as effective, as it allows a wall of air in rather than a stream, so the circulation is not as effective. Leaving the door open also means that your greenhouse and its contents are at risk from the neighbours' domestic pets, urban foxes and other garden animals. How to Fit a Louvre Window The roof vents (sometimes running the full length of the ridge and opened either manually or with automated openers)

Plants which are dry at the roots or drying out are therefore more at risk than plants which have adequate moisture at the roots.To install in your greenhouse simply remove a pane of glass and bolt the operating parts to the glazing bars of the greenhouse. Then slide five glass blades into place - these glass blades are NOT SUPPLIED with the kit - you can use the glass pane you removed to cut into these blades to form the louvre. In changeable weather, vents and doors often have to be left partially open to limit sudden increases in temperature. Larger greenhouses may, at high cost, be fitted with automated ventilation and shading Be alert for signs that shading and ventilation are required; sun-flag (partial collapse), leaf scorch, desiccation of tender young plants and shoots

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